G. Stakkestad et al., INVESTIGATION OF ELECTRICAL-CONDUCTIVITY AND SEEBECK COEFFICIENT OF CA-DOPED AND SR-DOPED LACRO3, Phase transitions, 58(1-3), 1996, pp. 159-173
The electrical conductivity and the Seebeck coefficient of one self pr
oduced Ca-doped LaCrO3 interconnector plate and two commercial Ca- and
Sr-doped LaCrO3 interconnector plates for solid oxide fuel cells have
been studied by 4 point DC measurements from oxidizing to reducing at
mospheres. The microstructure was studied on both as-sintered samples
and samples exposed to a CO2 rich atmosphere. The commercial Sr-doped
LaCrO3 has a higher electrical conductivity than the self produced Ca-
doped LaCrO3, while the latter seemed to be most resistant to CO2 rich
atmosphere.